Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-10T17:19:22.951Z Has data issue: false hasContentIssue false
  • English
  • Français

Tri-band dual circularly polarized planar antenna with defective ground structure for wireless applications

Published online by Cambridge University Press:  13 April 2015

B. Rama Sanjeeva Reddy  and
D. Vakula
B. Rama Sanjeeva Reddy*
Affiliation:
Department of ECE, National Institute of Technology, Warangal, India. Phone: +91 944 097 47 34
D. Vakula
Affiliation:
Department of ECE, National Institute of Technology, Warangal, India. Phone: +91 944 097 47 34
*
Corresponding author: B. Rama Sanjeeva Reddy Email: sanjeev.antenna@gmail.com
Get access Rights & Permissions [Opens in a new window]

Abstract

A novel tri-band asymmetric slot with defective ground structure (DGS) microstrip antenna for dual circular polarization (CP) is proposed. By placing a slot with 45° across diagonally at the center of the patch, excites resonant bands with narrow bandwidth and dual CP operation. The main design challenge is to introduce optimized defected element of circular dumbbell shape to enhance the impedance bandwidth with frequency shift operation at all bands. DGS enabled antenna is practically fabricated and simulated. Antenna is compact in size and shows a good quality of CP at two resonant bands and linearly polarized at one band. Structure displays the impedance bandwidth of 8% (2.26–2.45 GHz), 5.45% (3.41–3.6 GHz) and 3.07% (5.12–5.28 GHz). The design also shows 40 and 11 MHz, 3-dB axial ratio bandwidth at lower and middle bands, respectively. Simulated gain for each band is 4.72, 6.2 and 4 dB. Performance of antenna with and without DGS is also studied and compared. This single probe feed proposed antenna remains consistent with good radiation patterns and sufficient antenna gain over the operating bands. Excellent agreement was obtained between measurements and simulations.

Keywords

Defective ground structureCircular polarizationAxial ratio bandwidthGainAsymmetric slot
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 7 , November 2016 , pp. 1121 - 1128
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Zhou, Y.J.; Ch Chen, C.; Volakis, J.L.: Dual band proximity-fed stacked patch antenna for tri-band GPS application. IEEE Trans. Antennas Propag., 55 (1) (2007), 220–223.Google Scholar
[2] Laheurte, J.M.: Dual-frequency circularly polarized antennas based on stacked monofilar square spirals. IEEE Trans. Antennas Propag., 51 (3) (2003), 488–492.CrossRefGoogle Scholar
[3] Nguyen, H.T.; Noghanian, S.; Shafai, L.: Microstrip patch miniaturization by slots loading, in Proc. IEEE Inst. Symp. Antennas and Propagation, 2005, 215–218.Google Scholar
[4] Chang, T.N.; Shen, G.Y.; Lin, J.M.: CPW-fed antenna covering WiMAX 2.5/3.5/5.7 GHz bands. J. Electromagn. Waves Appl., 24 (3) (2010), 189–197.Google Scholar
[5] Lee, W.S.; Lim, W.G.; Yu, J.W.: Multiple band-notched planar monopole antenna for multiband wireless systems. IEEE Microw. Wireless compon. Lett., 15 (9) (2005), 576–578.Google Scholar
[6] Pie, J.; Wang, A.G.; Gao, S.; Leng, W.: Miniaturized triple band antenna with a defective ground plane for WLAN/WiMAX applications. IEEE Antennas Wireless Propag. Lett., 10 (2011), 298–301.Google Scholar
[7] Guha, D.; Biswas, S.; Biswas, M.; Siddiqui, J.Y.; Antar, Y.M.M.: Concentric ring-shaped defected ground structures for microstrip applications. IEEE Antennas Wireless Propag. Lett., 5 (2006), 402–405.CrossRefGoogle Scholar
[8] Liu, H.; Li, Z.; Sun, X.: Compact defective ground structure in microstrip technology. Electron. Lett., 41 (3) (2005), 132–134.CrossRefGoogle Scholar
[9] Pozar, D.M.; Duffy, S.M.: A dual-band circularly polarized patch aperture-coupled stacked microstrip antenna for global positioning satellite. IEEE Trans. Antennas Propag., 45 (11) (1997), 1618–1645.CrossRefGoogle Scholar
[10] Yang, K.P.; Wong, K.L.: Dual band circularly polarized square microstrip antenna. IEEE Trans. Antennas Propag., 49 (3) (2001), 377–382.Google Scholar
[11] Zhang, X.; Zhao, A.: Bandwidth enhancement of multiband handset antennas by opening a slot on mobile chassis. Microw. Opt. Technol. Lett., 51 (7) (2009), 1702–1706.Google Scholar
[12] Wen, L.; Chu, Q.X.; Shu, D.: Tri-band circularly polarized stacked microstrip antenna for GPS and CNSS applications, in IEEE Int. Conf. on Microwave and Millimeter Wave Technology (ICMMT), 2010, 252–255.Google Scholar
[13] Nasimuddin; Chen, Z.N.; Qing, X.: Dual band circularly polarized s-shaped slotted patch antenna with a small frequency ratio. IEEE Trans. Antennas. Propag., 58 (2010), 2112–2115.Google Scholar
[14] Liu, W.C.; Wu, C.M.; Dai, Y.: Design of triple frequency microstrip-fed monopole antenna using defected ground structure. IEEE Trans. Antennas. Propag., 59 (7) (2011), 2457–2463.Google Scholar
[15] Mok, W.C.; Wong, S.H.; Luk, K.M.; Lee, K.F.: Single layer single patch dual band and triple band patch antennas. IEEE Trans. Antennas Propag., 61 (8) (2013), 4341–4344.Google Scholar
[16] Baek, J.G.; Huang, K.C.: Triple-band unidirectional circularly polarized hexagonal slot antenna with multiple L-shaped slits. IEEE Trans. Antennas Propag., 61 (9) (2013), 4831–4835.Google Scholar